Triumph Serial Numbers Year

1. Triumph Serial Number Check

Frame numbers are usually stamped on the left side of the frame towards the top near the triple tree. Some BSA & Triumph models had frame numbers near the front engine support - check your frame and engine for identification numbers.When dating your motorcycle, do not go off of what the title says but instead your engine and frame numbers. Often times titles are not correct and do not reflect the 'true' year. When ordering parts go off both your frame and engine numbers NOT the titleTriumph 650 Unit Twins Engine & Frame Numbers (1963-1968)Below you will find both Triumph engine and frame numbers for Triumph 650 unit twins from 1963-1968 and a Triumph 650 models list from 1963-1968.Frame and engine numbers will be the same assuming they match as they would of when they left the factory. In 1969, BSA (exactly like Triumph) added a two-letter prefix to the actual engine number in order to indicate the month and model year but not the actual year of manufacture.Example A65 Lightning BC56946.

Apr 08, 2014  So, you've got a vintage Triumph motorcycle but you aren't sure what year it is, or you want to identify a swap meet frame or engine along with other Triumph motorcycle parts and don't know how to look up or decode the serial or VIN numbers? If so, the information below will be a big help. Year and model shown as prefix to engine number. To Dave Gaylin and Lindsay Brooke for printing the above information in their book “Triumph in America”.

B (Month) = February / C (Year) = 1969First Letter = Month Of ManufactureSecond Letter = Model year Of ManufactureA - JanuaryC - 1969B - FebruaryD - 1970C - MarchE - 1971D - AprilG - 1972E - MayG - JuneH - JulyJ - AugustK - SeptemberN - OctoberP - NovemberX - DecemberBSA 250, 350, 441 & 500 Unit Singles Engine & Frame Numbers (1959-1973)Below you will find BSA engine and frame numbers for all BSA unit singles produced from 1959-1973. Frame and engine numbers will be the same assuming they match as they would of when they left the factory.Many early BSA unit singles prior to 1966 left the factory without matching engine and frame numbers.

Triumph Serial Number Check

Triumph Spitfire Vehicle InformationProduction DataWhen the very first Spitfire was produced in October 1962 it was called (and badged) the 'Spitfire 4'. In December 1964 it was superseded by the 'Spitfire 4 Mk2'.In January 1967 a new model, the Mk3 was announced. The Mk3 was produced until Nov/Dec 1970 when it was eventually replaced by the MkIV, which in turn was replaced by the 'Spitfire 1500' in November 1974.All Spitfire models were produced at the factory in Canley.To minimise any possible confusion between the 'Spitfire 4', 'Spitfire 4 Mk2' and the MkIV, and to help ensure you order/receive the correct parts, we have used the following model identification system throughout.